Bazzle, cacecef, Bruce R.,
Thanks a lot for advice!
Drove today to the dealership and picked up a plastic hose ($6 per meter, they gave it to me for free
). 5 minutes to replace the hose - simply cut it to the right length and plug it into the rubber connectors on both ends. The old hose got very brittle and was breaking easily. Will see tomorrow if the codes get cleared.
While taking off the cover saw a lot of oil build-up on a Camshaft Adjuster Magnet. Cleaned it to check if new oil appears.